The Duck Brand Indoor 62 inch x 420 inch Window Insulation Kit includes 2 boxes of clear, translucent window film. The film is easy to install and made of plastic, providing insulation for windows measuring 5.1ftx17.5ft. Manufactured by Shurtape Technologies, this window film helps to reduce energy loss and noise transmission while still allowing natural light to filter through. Perfect for enhancing your home's energy efficiency and privacy.